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**Arduino Nano with IO Expansion Shield Kit** An **Arduino Nano with IO expansion shield kit** includes an Arduino Nano development board, a Nano IO expansion shield, and a USB cable. The expansion shield breaks out all Nano pins to clearly labeled headers and 3-pin (Signal, VCC, GND) connectors, making it easy to connect sensors, servos, relays, and other modules without complex wiring. It is widely used for embedded systems, robotics, and rapid prototyping.